GB/T 28706-2012Non-destructive testing - Test method for mechanical and electrical equipment with infrared thermography (English PDF)
无损检测 机械及电气设备红外热成像检测方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 3, 2012
Implementation date
March 1, 2013
Scope
GB/T 28706-2012 is the English-translated version of 无损检测 机械及电气设备红外热成像检测方法.
GB/T 28706-2012 is the Chinese standard "Non-destructive testing - Test method for mechanical and electrical equipment with infrared thermography".
Its scope clause reads: This standard specifies the method of infrared thermal imaging detection of mechanical and electrical equipment surface temperature distribution during operation, which aims at Found to be subject to temperature mechanical equipment or electrical apparatus.
This standard does not establish the evaluation criterion, specific criteria by the detection and users of mutual consultation. This standard does not fully given when the safety requirements for testing, the use of this standard to establish appropriate safety obligation of the parties prior to detection And health guidelines. Its clauses include terms and definitions.
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Document preview — GB/T 28706-2012
National Standard of the People's Republic of China
- ICS
- 19.100
- Classification
- J 04
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4.1 detection principle
1 Scope
This standard specifies the method of infrared thermal imaging detection of mechanical and electrical equipment surface temperature distribution during operation, which aims at
Found to be subject to temperature mechanical equipment or electrical apparatus.
This standard does not establish the evaluation criterion, specific criteria by the detection and users of mutual consultation.
This standard does not fully given when the safety requirements for testing, the use of this standard to establish appropriate safety obligation of the parties prior to detection
And health guidelines.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 9445 NDT personnel qualification and certification (ISO 9712.2005, IDT)
GB/T 12604.9 Terminology for nondestructive testing infrared detector
GB/T 19870 Industrial detection infrared camera
3 Terms and Definitions
Terms and definitions GB/T 12604.9 defined apply to this document.
4. Summary
4.1 detection principle
The basic principle of infrared thermal imaging detection method shown in Figure 1. Objects above absolute zero will produce thermal radiation, the radiation intensity and physical
Material type, topography, temperature and other characteristics related. Infrared thermography is the use of radiation characteristics of an object to measure the temperature of the surface field. The basic method is by measuring body heat transfer, such as the mechanical parts of the insufficient lubrication, electrical equipment and so poor contact
Body temperature changes caused by abnormal; infrared detectors could be the change, and by image processing techniques to convert it to visible light of FIG.
Like on the display shows the temperature and the temperature of the object at each point difference in grayscale or pseudo-color form; analyze and process the images, access
Status information of the measured object.
Different visible light imaging, infrared imaging is the use of the target with the surroundings due to the difference between the temperature and emissivity of the resulting
Thermal contrast is different, and the infrared radiation energy density distribution is displayed, a "thermal image", thus bringing the people's visual range from visible
Extended to infrared light.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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